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/*
* Author: MontaVista Software, Inc.
* source@mvista.com
*
* Copyright 2001-2002 MontaVista Software Inc.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation; either version 2 of the License, or (at your
* option) any later version.
*
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
* TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
* USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include <linux/errno.h>
#include <linux/init.h>
#include <linux/kernel_stat.h>
#include <linux/module.h>
#include <linux/signal.h>
#include <linux/sched.h>
#include <linux/types.h>
#include <linux/interrupt.h>
#include <linux/ioport.h>
#include <linux/timex.h>
#include <linux/slab.h>
#include <linux/random.h>
#include <linux/irq.h>
#include <linux/bitops.h>
#include <asm/bootinfo.h>
#include <asm/io.h>
#include <asm/irq.h>
#include <asm/mipsregs.h>
#include <asm/system.h>
#include <asm/time.h>
#include <asm/tx4927/tx4927.h>
#undef DEBUG
void __init tx4927_time_init(void);
void dump_cp0(char *key);
void __init plat_mem_setup(void)
{
board_time_init = tx4927_time_init;
#ifdef CONFIG_TOSHIBA_RBTX4927
{
extern void toshiba_rbtx4927_setup(void);
toshiba_rbtx4927_setup();
}
#endif
}
void __init tx4927_time_init(void)
{
#ifdef CONFIG_TOSHIBA_RBTX4927
{
extern void toshiba_rbtx4927_time_init(void);
toshiba_rbtx4927_time_init();
}
#endif
return;
}
void __init plat_timer_setup(struct irqaction *irq)
{
u32 count;
u32 c1;
u32 c2;
setup_irq(TX4927_IRQ_CPU_TIMER, irq);
/* to generate the first timer interrupt */
c1 = read_c0_count();
count = c1 + (mips_hpt_frequency / HZ);
write_c0_compare(count);
c2 = read_c0_count();
#ifdef CONFIG_TOSHIBA_RBTX4927
{
extern void toshiba_rbtx4927_timer_setup(struct irqaction
*irq);
toshiba_rbtx4927_timer_setup(irq);
}
#endif
return;
}
#ifdef DEBUG
void print_cp0(char *key, int num, char *name, u32 val)
{
printk("%s cp0:%02d:%s=0x%08x\n", key, num, name, val);
return;
}
void
dump_cp0(char *key)
{
if (key == NULL)
key = "";
print_cp0(key, 0, "INDEX ", read_c0_index());
print_cp0(key, 2, "ENTRYLO1", read_c0_entrylo0());
print_cp0(key, 3, "ENTRYLO2", read_c0_entrylo1());
print_cp0(key, 4, "CONTEXT ", read_c0_context());
print_cp0(key, 5, "PAGEMASK", read_c0_pagemask());
print_cp0(key, 6, "WIRED ", read_c0_wired());
//print_cp0(key, 8, "BADVADDR", read_c0_badvaddr());
print_cp0(key, 9, "COUNT ", read_c0_count());
print_cp0(key, 10, "ENTRYHI ", read_c0_entryhi());
print_cp0(key, 11, "COMPARE ", read_c0_compare());
print_cp0(key, 12, "STATUS ", read_c0_status());
print_cp0(key, 13, "CAUSE ", read_c0_cause() & 0xffff87ff);
print_cp0(key, 16, "CONFIG ", read_c0_config());
return;
}
void print_pic(char *key, u32 reg, char *name)
{
printk("%s pic:0x%08x:%s=0x%08x\n", key, reg, name,
TX4927_RD(reg));
return;
}
void dump_pic(char *key)
{
if (key == NULL)
key = "";
print_pic(key, 0xff1ff600, "IRDEN ");
print_pic(key, 0xff1ff604, "IRDM0 ");
print_pic(key, 0xff1ff608, "IRDM1 ");
print_pic(key, 0xff1ff610, "IRLVL0 ");
print_pic(key, 0xff1ff614, "IRLVL1 ");
print_pic(key, 0xff1ff618, "IRLVL2 ");
print_pic(key, 0xff1ff61c, "IRLVL3 ");
print_pic(key, 0xff1ff620, "IRLVL4 ");
print_pic(key, 0xff1ff624, "IRLVL5 ");
print_pic(key, 0xff1ff628, "IRLVL6 ");
print_pic(key, 0xff1ff62c, "IRLVL7 ");
print_pic(key, 0xff1ff640, "IRMSK ");
print_pic(key, 0xff1ff660, "IREDC ");
print_pic(key, 0xff1ff680, "IRPND ");
print_pic(key, 0xff1ff6a0, "IRCS ");
print_pic(key, 0xff1ff514, "IRFLAG1 "); /* don't read IRLAG0 -- it hangs system */
print_pic(key, 0xff1ff518, "IRPOL ");
print_pic(key, 0xff1ff51c, "IRRCNT ");
print_pic(key, 0xff1ff520, "IRMASKINT");
print_pic(key, 0xff1ff524, "IRMASKEXT");
return;
}
void print_addr(char *hdr, char *key, u32 addr)
{
printk("%s %s:0x%08x=0x%08x\n", hdr, key, addr, TX4927_RD(addr));
return;
}
void dump_180(char *key)
{
u32 i;
for (i = 0x80000180; i < 0x80000180 + 0x80; i += 4) {
print_addr("180", key, i);
}
return;
}
void dump_eh0(char *key)
{
int i;
extern unsigned long exception_handlers[];
for (i = (int) exception_handlers;
i < (int) (exception_handlers + 20); i += 4) {
print_addr("eh0", key, i);
}
return;
}
void pk0(void)
{
volatile u32 val;
__asm__ __volatile__("ori %0, $26, 0":"=r"(val)
);
printk("k0=[0x%08x]\n", val);
}
#endif
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